I'm glad to hear your Y. torreyi is doing well. I'm not sure how much 'dry' cold they can take. I would think the -10F area may be their limit. I killed a 'dry' Y. treculeana in 2004/2005 when it hit -8F and the 'dry' rostrata was fine. Not sure how much hardier torreyi will be??
Y torreyi seems to be a hardy yucca if kept dry...need survival range however,, - Rob - near Cookeville, Tn December 29, 2011, 11:25 am
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